A5088509009- Silicon Carbide Semiconductor Technologies
- Advanced DC-DC Converters
- Multilevel Inverters and Converters
- Electromagnetic Compatibility and Noise Suppression
- Magnetic Properties and Applications
- Electrostatic Discharge in Electronics
- Image Processing Techniques and Applications
- Electric Motor Design and Analysis
- Microgrid Control and Optimization
- Advancements in PLL and VCO Technologies
- Semiconductor Lasers and Optical Devices
- Microwave Engineering and Waveguides
- Radio Frequency Integrated Circuit Design
- Advancements in Semiconductor Devices and Circuit Design
- Image and Object Detection Techniques
- Magnetic Field Sensors Techniques
- Advanced Measurement and Detection Methods
- Advanced Data Storage Technologies
- Advanced Battery Technologies Research
Technical University of Denmark
2021-2024
Bandung Institute of Technology
2015
This article aims to study the core losses behavior at high frequency (MHz range) with superimposed dc bias in ferrite. Inductive compensation method is employed measurement circuit reduce sensitivity phase errors. An addition proposed this work make easier generation. Furthermore, a detailed accuracy consideration also discussed. The tested MnZn ferrite has nominal relative permeability of 1500 and 800, which was from 500 kHz 3 MHz. results are explained thoroughly three controlling...
An integrated inductor for a highly compact embedded battery charger is designed in this article. A zero-voltage switching (ZVS) buck converter the selected topology to achieve high power density. ZVS achieved by sizing based on energy balance and introducing <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$k$</tex-math></inline-formula> factor. novel four-leg magnetic core structure proposed as inductor. By...
As a popular topology in point of load (PoL) application, multiphase buck converter always faces trade-off problem between faster load-transient response and smaller inductor ripple current, which is solved by the coupled number literatures. This paper aimed at modeling analysis for four-legged integrated indirect applied four-phase 5 V DC to PoL application. The quantitative conducted through an equivalent steady-state inductance model. Inductor operation investigated under different duty...
Parasitic inductance of capacitors degrades the high frequency (HF) performance electromagnetic interference (EMI) filters. In this paper, a new method equivalent series (ESL) cancellation for is proposed systematically. Firstly, two-port network using mutual modeled and analyzed parasitic cancellation, formulas deduction demonstrated. Then, symmetrical PCB layout implementation. Finally, verified by experimental results. studied case, ESL X-capacitor has been effectively cancelled up to...
Goal posts detection is a critical robot soccer ability which needed to be accurate, robust and efficient. A goal method using Hough transform get the detailed features presented in this paper. In beginning, image preprocessing implementation are described detail. new modification on θ parameter range explained applied speed up process. Line processing algorithm used classify line detected, then feature extraction method, including intersection calculation, done. Finally, distance from body...
This paper aims to provide more insight into core losses at high frequency (MHz range) with superimposed DC bias. Inductive cancellation method is employed reduce measurement sensitivity phase errors. PC200 material was used for range 1 - 3 MHz. Measurement results show higher <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$B$</tex> field excitation in ß parameter shift Steinmetz parameter. At frequency, similar behaviour found α bias bring...
The latest development of 5 kW Transformerless Bidirectional Inverter in PT. Len Industri is reported, accompanied with the experimental result. dc-dc converter and inverter topology control described brief. Next, hardware design parallel are examined. Parallel operation component will be highlighted, such as PLL, Droop Control Virtual Impedance. Finally, tested proved to able operate power supply, battery charger have capability equal load sharing. peak efficiency at this time 92.5 %.
A new integrated inductor for a 2-phase interleaving buck converter is designed and built in this work. ZVS achieved by sizing the based on energy balance introducing <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$k$</tex> factor. 4-leg magnetic core structure proposed as inductor. By modified parameter xmlns:xlink="http://www.w3.org/1999/xlink">$\alpha_{\text{eff}}$</tex> to iGSE method, optimal switching frequency loss can be found, which 2...
Venturing into MHz switching frequency promotes the integration of inductive DC-DC converter mobile devices. Combining GaN power switch with low-loss ferrite core materials opens up new possibilities for high-frequency operations. In this work, we investigate design a single inductor and chip half-bridge ZVS buck converter. Design guidelines are accompanied by preliminary performance assessment via simulations. To demonstrate our device, fabricated tested 20 W prototype converting 6 - 12 V...